Development and application of a solid-state fan for enhanced heat dissipation

Abstract

The miniaturization and high integration of electronic devices require efficient heat transfer enhancement. The solid-state fan (SSF) based on corona discharge is a good candidate. The SSF shows advantages in energy consumption, size, cost, and operability et al. compared to traditional cooling systems. In this paper, a high performance SSF was proposed and developed for heat transfer enhancement. The generation of corona wind in SSF was explored theoretically, and a velocity correction method was proposed. The operating durability was improved under the action of carbon nanotube and manganese dioxide. The structure and electrical parameters of SSF can be optimized to obtain higher corona wind velocity. A 3.96 m/s corona wind velocity was obtained for the optimized SSF. The prototype of SSF shows better cooling performance for both uniform heat flux and hot spot heat flux. A temperature drop of 22.3 °C can be obtained for a light-emitting diode (LED) at the applied voltage of 6 kV, and the luminous flux decreased by only 1.5%, which is a satisfactory result. A coated SSF can increase the corona wind velocity at the same voltage and minimize the ozone generation to prolong the service life.